Steam-engine.



F. H. STANARD.

l STEAM ENGINE. APPLIUATION FILED M118, 191:1,

3 SHEETS-SHEET 1.

Patented June 30,1914.

F. H. STANARD.

STEAM ENGINE. 1 APPLICATION FILED APR. 8, v1913. l 1,1 O2, 1 02. Patented June 30, *1914.

3 SHEETS-SHEET 2.

A m, y@ 9.5m

P. H. STANARD.

STEAM ENGINE. APPLICATION FILED APR. s, 191s.

1,1 O2, 1 O2. Patented June 30, 1914.

UNTTED sTATas PATENT onirica.

FRANK H. STANARD, 0F DENVER, COLORADO, ASSIGNOR TO THE STANARD AUTO- MOBILE MANUFACTURING COMPANY, 0F DENVER, COLORADO, A CORPORATION OF COLORADO.

sTnAMTNGiNn.

To all ywhom 'it may concern Be it known that I, FRANK H. STANARD, a citizen of the United States, residing at Denver, in the county of Denver and State of Colorado, have invented new and useful Improvements in Steam-Engines,- of whic the following is a specification.

This invention relates to steam engines, the object in .view being to produce an engine of the class described which is exceedingly compact and economical both in construction and operation, .whereby it is `especially adapted for usein automobiles, motor trucks, and mechanicallyy propelled vehicles of all kinds.

With the above andother objects in View, the invention consists in the construction, combination and arrangement of parts, as

will be hereinafter more'fully described, i

illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the drawings: Figure 1 is a vertical longitudinal section through a steam engine embodying the present invention. Fig. 2 is a horizontal longitudinal section through through thel engine. Fig. 4'is a detail vertical longitudinal section on the iine4-4 of Fig. 2.

The engine contemplated in this inven# tion embodies essentially a stationary frame 1, and a reciprocating body 2 supported and guided by said frame, the said frame and body being preferably-inclosed by means of a jacket 31 which is shown as bolted, at 4, to the opposite ends of the stationary frame.

The reciprocating body 2 comprises a number of cylinders 5, 6, 7 and 8 radiating from a common center, in which is located the single crank'pin 9 of the crank shaft 10, said crank shaft being mounted in roller bearingsl 11 in the oppositely located central portions 12 of the stationary frame, as shown in Fig. 2. In this way, a plurality of expansion chambers 13, 14, 15 and 16 is provided, the length of each of which is radial with respect to the crank pin 9, as shown in Fig. '1.

The expansion chamber 13 is constantly in communication with the expansion chamber 15 by means of a by-pass 17, and the expansion chamber 14 is constantly in communication with the expansion chamber 16 by means of a by-pass 18. Therefore, when Specification of Letters Patent.

Patented June 30, ,1914.

Application led April S, 1913. Serial No. 759,742. s

steam is admitted to either of the chambers 13 and 14, it is simultaneously admitted to one or the other of the chambers 15and16.

19 and 20 designate stationary=-pistons which are rigidly connected to the stationary frame, as shown, each of said stationary pistons being provided with an inclosed steam passage 21 extending longitudinally through the same and preferably centrally thereof, as shown in Fig. 1,' each `of the pas-v sages 21` forming combined inlet'and exhaust passages, as will hereinafter appear. The pistons 19 and 20 being stationary, the cylinders 5 and 6 work oversaid pistons lengthwise of the latter, the 4reciprocating body 2 being moved back' and forthl by the` expansion of the steam in lthe chambers 13 and 1,4..

22 and 23 designate reciprocating pistons which are mounted respectively in the exV pansion chambers 15gand 16, the `pistons`22 expansion 'and'23 beingconnected together, so| as 'to work in unison, by bolts 24, the inner abutting ends of said,,reciprocating pistons being recessed, as shown at 26, to forma bearf l ing for thev single crank pin 9 of the crank the same. Fig. 3 is .a vertical cross section lchambers 15 and 16 are closed by plugs'27,

shaft 10. The outer ends of the expansion preferably screwed therein, as shown in Fig. 1. Each of the cylinders 5- and 6 is sup'- ported and guided by one of the stationary pistons 19`and 20, as shown in Figs. 1` and 2, but it is preferred to additionally support yandguidesaid cylinders 5 and 6 by providing the latter at diametrically opposite points with flanges 28 which engage guides 29 on the stationary frame'l, as clearly shown in Fig. 2.

' At a suitable point of the engine, there isv arranged a steam chest 30 containing aV fvalve, thesteni 31 of said valve being provided with an arm 32, to which is attached a connecting rod 33, theother end of which is pivotally .attached to'an arm' 34on a` rock shaft 35, shown as mounted in bearings 36 and 37 on the jacket or casing 3 and the stationary frame 1, respectively. "Fast'on the shaft 35 is a fork 38, the arms of which carryrollers 39 which work at diametrically opposite points in Contact with ay cam 40 fast on the crank shaft 10. This cam is shaped as shown in Fig. 2, embodying ythe oppositely arranged cylindrical Aend portions `41 and 42 for changing the throwv of y the valve in the chest 30, when the fork-38'v is slid lengthwise of the shaft 35, it being understood that said fork 38 is keyed or feathered to the shaft 35, so as to operate said shaft When the fork itself is vibrated or swung by reason of the contact between the rollers 39 and the cam 40. When the fork 38 is in an intermediate position, as illustrated in Fig. 2, steam is cut off from the engine cylinders, and when said fork is slid in one direction, Ythe engine is driven ahead, and when the fork is shifted to the opposite limit of its movement, the valve is set for admitting steam to drive the engine in a reverse direction. The hub of the fork 38 is provided With an annular groove 423 to receive the inturned extremity 44E of a manually operated rod 1-.5 which projects through an opening in the jacket or casing 3 whereby said fork 38 may be shifted lengthwise of the rock shaft 35 for the pui pose set forth.

To adapt the engine for use on automa biles, one 0r `more air compressing cylinders 46 and 47 may be arranged Within the jacket or casing 3, i8 and i9 designating pistons working in said cylinders, the piston 48 being pivotally connected, at 50, with an eccentric strap 5l passing around an eccentric 52 fast on the crank shaft l0. The other piston i9 is connected pivotally, at 53, to a strap 54 passing around another eccentric 55 also fast on the shaft l0, adjacent to the eccentric 52. Air is admitted to the cylinder i6 uthrough a check valved inlet pipe 56, transferred from said cylinder to the cylinder t7 through acheck valved by-pass 57, and forced from the cylinder a7 through a check valved pipe 58 to the point of use. From the steam chest 30, steam pipes 59 and 60 lead to opposite ends of the engine and communicate with the steam passages 21 eX- tending centrally through the stationary pistons 19 and 20. Steam in this vvay is alternately admitted through the pistons 19. and 20 to the expansion chambers 13 and 14, and the spent steam is exhausted reversely through the saine passages, the valve in the chest 30 being timed to open and close at the proper intervals to provide for the admission and exhaust of the steam.

From the foregoing description, it will be seen that the steam which acts against one of the stationarypistons is also admitted to one of the other series of expansion chambers, so as to operate against the reciprocatory piston, the steam acting directly in one expansion chamber to force the reciprocating body in one direction, While the steam at the same time acts on the reciprocating piston to drive the same lengthwise of its expansion chamber, the combined force of thetivo movements being applied to the common crank pin 9 of the single crank shaft l0. ln this Way, space is greatly economized, as the expansionchambers are 4bod in a rectilinear nath a stationar engine frame, a rotary crank shaft journaled in said frame, oppositely located stationary pistons having a fixed relation to said frame, and oppositely located reciprocating pistons having a movement in their cylinders at an angle to the movement of said cylinders.

2. In a steam engine, a stationary frame, a crank shaft Journaled therein, a reciproeating body mounted in said frame and comy prising series of noii-rotary cylinders all movable in a body in a rectilinear path, one l seriesbeiiig arranged lengthwise in the plane l ofmovement of the body and another series perpendicular to the vplane of movement of the body, stationaryy pistons over Which the first series of cylinders Work, and reciprocating pistons Working in the second series of cylinders.

3. ln a steam engine, a stationary frame,

1a crank shaft journaled therein, a reciproeating body mounted in said frame and comprising series of non-rotary cylinders all t movable in a body in a rectilinear path, one

series bein@ arranged lengthwise in the )lane C t) D of movement of the body and another series fperpendicular to the plane'of movement of l the body,y stationary pistons having a fixed jrelation to the frame and over Which the first series of cylinders Work, and reciproeating pistons Working in the second series of cylinders, the first and second series befing interconnectedl by bypasses l. In a steam engine, a stationary frame,

4la crank shaft journaled therein, a reciprot cating body mounted iii said frame and comi prising series of non-rotary cylinders all movable in a body in a rectilinear path, one series being arranged lengthwise in the plane t of movement of the body and another series perpendicular to the plane of movement of the body, stationary pistons having a fixed `relation to the frame and over which the first series of cylinders Work, and reciprocating pistons Working in the second series of cylinders, the crank shaft having a single crank pin to Which the reciprocating pistons are connected.

5. ln a steam engine, a stationary frame,

a crank shaft journaled therein, a reciprocating body mounted in said frame and coinprising series of non-rotary cylinders all movable in a body in a rectilinear path, one series being arranged lengthwise in the plane iso of movement of the body and another series perpendicular to the plane of movement of the body, stationary pistons having a Xed relation to the frame and over Which the :1 first series of cylinders Work, and reciprocating pistons Working in the second series of cylinders, the first and second series being interconnected by by-passes and the stationary pistons being formed with inclosed Steam FRANK H. STANARD.

Witnesses:

GEORGE Q. RICHMOND, CHARLESH. PIERCE.

Copies ot this patent may be obtained for ive cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

